Sand-excluder



L-L'PERRY.

SAND EXCLUD'ER.

APPLICAHON ElLED m4. n, 1919.

Patenwd May 24, 1921.

PATENT OFFICE.

JOEN J. PERRY, OF BOBWORTH, MISSOURI.

SAND-EXCLUDED.

Specification of Letters Patent.

Patented May 24, 1921.

Application filed January 11, 1919. Serial No. 270,653.

Toallwhomz'tma concern:

Be it known that I, JOHN J. PERRY, a citizen of the United States,residin at Bosworth, in the county of Carroll and tate of Missouri, haveinvented certain new and useful Improvements in Sand-Excluders; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to a well tachment having means for effectivelypreventing the suck of sand by a well pump.

An 1m ortant o ject of this invention is to provi e an attachment forwell pumps adapted to exclude all sand and so forth from the pump pipethereby preventing the same from being pumped up with the water.

A further ob ect of this invention is to provide means of the characterdescribed which are eas to attach to a well pump pipe, durable in use,and of highly simplified construction.

Other ob'ects and advantages of the invention will be a parent duringthe course of the following escription.

In the accompanying drawings forming a part of this specificatlon and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 1s a side elevation of a well pump piple attachment embodied inmy invention, an

Fig. 2 is a central vertical longitudinal section through the same.

In the drawings wherein for the purpose of illustration is shown thereferred embodiment of my invention, t e numeral 5 generically desi tesm improved well pump pipe attac ent, w. ich in manufacture may be of andesired material and of any suitable size. he attachment com rises acylindrical casing 6 having an im eribrate bottom 7. The upper portionof e casing 6 is provided wit external screw threads 8 engagininteriorly disposed screw threads 9 carri by the lower portion of acoupling member 10. The coupling member 10 is adapted for attachment toa well pipe throu h the medium of the interiorl screwthrea ed nut 11formed integral with the reduced end portion 12 of the same. Circularopenings 13 are disposed about the cylinump atdrical casing 6 at a pointspaced upwardl from its bottom. A non-rusting wire mes 14 is arrangedover the openings 13 and is adapted to exclude particles of sand and thelike from the interior of the casing. A pipe 15 is disposed with.-thecylindrical casing 6 and is of a considerabl less diameter than thesame. As shown in Fig. 2, the lower end of the pipe 15 is open and isspaced upwardly from the imperforate bottom 7 of the casing 6. The pipe15 has threaded engagement at its upper end portion thereof with asuitable pipe supporting circular plate 16. The pipe su porting plate 16is provided with an annu ar flange l7 resting upon the upper end of thecasing 6. An interiorly disposed annular shoulder 18 carried by thecoupling member 10 is adapted for contact with the annular flange 17carried by the pipe supporting plate 16. The upper surface of the member16 is provided with a valve seat 19 receiving a leather valve 20 of thecheck valve type.

In the use of my improved well pump attachment it will be apparent thatthe same is attached to the well ipe and arranged in the bottom of thewel. Only that water above level of the openings 13 will be permitted toenter the interior of the cylindrical casing 6.

Upon the creation of a suction, the water passes upwardly through thepipe 15 as inicated b the arrows and subsequently through t e coupling10 of the well pump.

While I have shown and described the referred embodiment of myinvention, it is understood that I may make such minor changes inarrangement and construction of parts, as will remain within the spiritof the invention and scope of the appended claim.

Having thus described my invention, what I claim is:-

A sand excluder comprisin a cylinder having its lower end closed and itsupper end open and externally screw threaded, means for admitting fluidto the interior of the cylinder adjacent its upper end, a coupling capthreaded to the u per end of the c linder an internal shoul er formed insai cap and spaced from the up er end of said cylinder, a valve seatsecures between said shoulder and the upper end of the cylinder by theattaching of the cap to the latter,

said seat having a centrall arranged screw In testimony whereof I aflixmy signature threaded bore, a gheck Va ve {gr saiddseat, in presence oftwo Witnesses.

and a, tube threa ed in said re an extending downwardly in the cylinderto a JOHN PERRY 5 point adjacent the closed end thereof and Witnesses:

of a diameter considerably less than the L. L. ODILL,

diameter of the cylinder. F. M. WOODYARD.

